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authorNick Piggin <npiggin@kernel.dk>2011-01-07 17:49:38 +1100
committerNick Piggin <npiggin@kernel.dk>2011-01-07 17:50:23 +1100
commitb5c84bf6f6fa3a7dfdcb556023a62953574b60ee (patch)
tree7a2c299a180713e21d5cb653cb933121adf53c31 /fs/libfs.c
parent949854d02455080d20cd3e1db28a3a18daf7599d (diff)
downloadlinux-linaro-stable-b5c84bf6f6fa3a7dfdcb556023a62953574b60ee.tar.gz
fs: dcache remove dcache_lock
dcache_lock no longer protects anything. remove it. Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Diffstat (limited to 'fs/libfs.c')
-rw-r--r--fs/libfs.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index cc4794914b52..28b36663c44e 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -100,7 +100,6 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
struct dentry *cursor = file->private_data;
loff_t n = file->f_pos - 2;
- spin_lock(&dcache_lock);
spin_lock(&dentry->d_lock);
/* d_lock not required for cursor */
list_del(&cursor->d_u.d_child);
@@ -116,7 +115,6 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int origin)
}
list_add_tail(&cursor->d_u.d_child, p);
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
}
}
mutex_unlock(&dentry->d_inode->i_mutex);
@@ -159,7 +157,6 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
i++;
/* fallthrough */
default:
- spin_lock(&dcache_lock);
spin_lock(&dentry->d_lock);
if (filp->f_pos == 2)
list_move(q, &dentry->d_subdirs);
@@ -175,13 +172,11 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
spin_unlock(&next->d_lock);
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
if (filldir(dirent, next->d_name.name,
next->d_name.len, filp->f_pos,
next->d_inode->i_ino,
dt_type(next->d_inode)) < 0)
return 0;
- spin_lock(&dcache_lock);
spin_lock(&dentry->d_lock);
spin_lock_nested(&next->d_lock, DENTRY_D_LOCK_NESTED);
/* next is still alive */
@@ -191,7 +186,6 @@ int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
filp->f_pos++;
}
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
}
return 0;
}
@@ -285,7 +279,6 @@ int simple_empty(struct dentry *dentry)
struct dentry *child;
int ret = 0;
- spin_lock(&dcache_lock);
spin_lock(&dentry->d_lock);
list_for_each_entry(child, &dentry->d_subdirs, d_u.d_child) {
spin_lock_nested(&child->d_lock, DENTRY_D_LOCK_NESTED);
@@ -298,7 +291,6 @@ int simple_empty(struct dentry *dentry)
ret = 1;
out:
spin_unlock(&dentry->d_lock);
- spin_unlock(&dcache_lock);
return ret;
}